Double-skin wall galling device
By designing a roughening tool suitable for double-layer walls, a rolling wheel and transmission mechanism are used to enter the cavity and form a rough surface, solving the problem of roughening double-layer walls and improving the bonding strength between new and old concrete.
Patent Information
- Application Number
- CN202520082276.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing roughening tools cannot effectively roughen double-layer walls, resulting in insufficient roughness at the interface between new and old concrete, and reduced adhesion.
A double-skin wall roughening tool was designed, including a frame and a roughening assembly. The frame consists of a gripping part and a first support part, and the roughening assembly consists of a second support part and a roughening toothed nail assembly. Combined with a rolling wheel assembly and a transmission mechanism, it can flexibly enter the cavity of the double-skin wall and form a rough surface on the concrete surface through the roughening toothed nails.
It improved the roughness of the interface between new and old concrete, enhanced adhesion, and improved the mechanical properties of the double-layer wall.
Smart Images

Figure CN223893820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction, and more specifically to a roughening device for combining new and old concrete components. Background Technology
[0002] After concrete components are poured and molded, specialized tools are used to create indentations of a certain depth on their surface. This forms fine, elongated lines on the concrete surface, compacting the surface contact area and reducing micro-voids and cracks caused by moisture evaporation and cement particle shrinkage. Simultaneously, it increases the contact area between the new and old concrete, improves the surface roughness, enhances the bond between them, and ultimately improves the mechanical properties of the bond between the two.
[0003] Existing surface roughening tools are typically simple wire brushes, mainly used for roughening the joints of composite slabs. However, dedicated surface roughening equipment is bulky and not flexible or convenient to use. When the precast component is a double-skin wall (composite slab shear wall), the slab cast later on one side often cannot be roughened using traditional methods, resulting in insufficient surface roughness and reduced adhesion. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a double-skin wall roughening tool.
[0005] A double-layer wall textured surface tool includes: a frame and a textured surface assembly. The frame includes a gripping portion and a first support portion. The textured surface assembly includes a second support portion and a textured surface tooth assembly located on the second support portion. The lower part of the second support portion includes a rolling wheel assembly that rolls in a horizontal plane, and the upper part of the second support portion includes a rolling wheel assembly that rolls in a vertical plane.
[0006] A double-skin wall texturer is provided, wherein the gripping part includes a stretching component located in the middle of the gripping part.
[0007] A double-skin wall texturer is provided, wherein the second support part includes a vertical support part and a horizontal support part fixed on the vertical support part.
[0008] A double-layer wall textured surface tool is provided. The vertical support portion includes a first vertical support plate, a second vertical support plate, a third vertical support plate, and a fourth vertical support plate. The horizontal support portion includes a first horizontal support plate, a second horizontal support plate, and a third horizontal support plate. The second and third vertical support plates are fixed to the lower part of the third horizontal support plate, and the first and second horizontal support plates are fixed to the inner sides of the second and third vertical support plates.
[0009] A double-skin wall texturer is provided, wherein the first vertical support plate and the fourth vertical support plate are fixedly connected to the outer sides of the two ends of the first support portion, respectively.
[0010] A double-skin wall texturer is provided, wherein the two ends of the third horizontal support plate are fixedly connected to the inner side of the connecting part.
[0011] A double-skin wall texturer is provided, wherein the vertical rolling wheels are located at the two ends of the first support and the upper part of the second support.
[0012] A double-layer wall roughening tool is provided, wherein a first horizontal rolling wheel is provided between the first vertical support plate and the second vertical support plate; and a second horizontal rolling wheel is provided between the third vertical support plate and the fourth vertical support plate.
[0013] A double-skin wall roughening tool is provided, wherein a pad is provided on the upper part of the second horizontal support plate.
[0014] A double-skin wall sizing tool is provided, wherein the grip and sizing tooth assembly are connected by a transmission mechanism.
[0015] Compared with the prior art, the present invention uses a tension rope to pull a movable iron plate, compressing a spring to make the roughening toothed nail higher than the lower roller. It then extends into the double-layer wall through the square handle. Since a large number of truss bars are distributed inside the cavity of the double-layer wall, side pulleys are provided on both sides of the roughening component to facilitate entry into the cavity. Even when encountering obstacles, it can still smoothly enter the cavity of the wall. After reaching the designated position, the tension rope is released, the spring returns to its original position, the roughening toothed nail is inserted into the concrete, and it is pulled out through the handle. The fixed depth groove pulled out by the roughening toothed nail serves as the rough surface for the bonding of the new and old concrete. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the double-skin wall roughening tool of this utility model.
[0017] Figure 2 This is a schematic diagram of the gripping part and the first support part of this utility model.
[0018] Figure 3 This is a schematic diagram of the gripping part of this utility model.
[0019] Figure 4 This is a schematic diagram of the second support part and the texturing component of this utility model.
[0020] Figure 5 This is a schematic diagram of the second horizontal support plate structure of this utility model.
[0021] Figure 6 This is a schematic diagram of the second vertical support plate structure of this utility model.
[0022] Figure 7 This is a schematic diagram of the first horizontal support plate structure of this utility model.
[0023] Figure 8 This is a schematic diagram of the horizontal roller assembly structure of this utility model.
[0024] Figure 9 This is a schematic diagram of the toothed nail structure of this utility model.
[0025] Figure 10 This is a schematic diagram of the vertical roller structure of this utility model.
[0026]
[0027] Detailed Implementation
[0028] The following is combined with Figures 1-10 The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "front," "back," and similar expressions used in this specification are for illustrative purposes only.
[0030] like Figure 1 As shown, a double-layer wall textured surface tool includes: a frame 100 and a textured surface assembly 200. The frame 100 includes a gripping portion 110 and a first support portion 120. The textured surface assembly 200 includes a second support portion 210 and a textured surface toothed pin assembly 220 located on the second support portion. The lower part of the second support portion 210 includes a horizontal rolling wheel assembly 230 that rolls in a horizontal plane, and the upper part of the second support portion includes a rolling wheel assembly 240 that rolls in a vertical plane.
[0031] like Figure 2 , Figure 3 As shown, the frame 100 includes a gripping part 110 and a first support part 120.
[0032] The gripping part 110 is square, and a locking part 111 is provided at the middle of each side of the gripping part 110. The locking part 111 is roughly rectangular in shape in the side wall of the gripping part, and the two ends of the pull rod 1121 of the tensioning assembly 112 are respectively provided in the recesses of the two recesses. The pull rod 1121 slides back and forth (rolls) in the recess, thereby driving the tensioning assembly 120 to work.
[0033] It should be noted that the grip part 110 can also be designed as an oval shape, or other shapes suitable for gripping.
[0034] The first support portion 120 is generally Y-shaped. The two ends (121, 122) of the first support portion 120 and the transmission mechanism extension end 123 of the first support portion 120 are hollow. The transmission mechanism (in this embodiment, a pull wire) 1122 of the tensioning assembly is connected to the pull rod 1121 through the end 123.
[0035] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the texturing assembly 200 includes a second support portion 210 and a texturing toothed pin assembly 220 located on the second support portion. The second support portion 210 includes a vertical support assembly 211 and a horizontal support assembly 212. The vertical support assembly 211 includes four vertical support plates: a first vertical support plate 2111, a second vertical support plate 2112, a third vertical support plate 2113, and a fourth vertical support plate 2114. The first vertical support plate 2111 is fixedly connected to the outer wall of end 121, and the fourth vertical support plate 2114 is fixedly connected to the outer wall of end 122. This fixed connection can be an integral structure, a snap-fit method, or a connection using bolts or other connecting components. The second vertical support plate 2112 and the third vertical support plate 2113 are located between the first vertical support plate 2111 and the fourth vertical support plate 2114, and are respectively fixed to the lower bottom of the third horizontal support plate 2123.
[0036] The first vertical support plate 2111 and the fourth vertical support plate 2114 are symmetrically arranged cuboid plates; the second vertical support plate 2112 and the third vertical support plate 2113 are symmetrically arranged L-shaped plates with steps. Since the second vertical support plate 2112 and the third vertical support plate 2113 have the same structure, this embodiment only describes the second vertical support plate 2112 in detail. A support platform 21121 is provided on the second vertical support plate 2112.
[0037] The two ends of the second horizontal support plate 2122 are respectively flat “L” shaped support portions (21221, 21222), and the two ends of the second horizontal support plate 2122 are respectively fixed to the vertical “L” platform portions of the second vertical support plate 2112 and the third vertical support plate 2113.
[0038] The horizontal roller assembly 230 has rollers 231 positioned between the first vertical support plate 2111 and the second vertical support plate 2112, and rollers 232 positioned between the third vertical support plate 2113 and the fourth vertical support plate 2114. When the brushing machine is in operation, it can move back and forth under the action of the roller assembly 230 and the pulling force.
[0039] Figure 5 , Figure 6 , Figure 7 As shown, the first horizontal support plate 2121 has multiple brushed toothed nail through holes 21211, and the second horizontal support plate 2122 has multiple brushed toothed nail through holes 21223, which are the same as those on the first horizontal support plate 2121. The number of holes 21211 on the first horizontal support plate is the same as the number of holes 21223 on the second horizontal support plate, and their vertical positions correspond to each other. The two ends (121, 122) of the first support part are respectively fixed to the inner sidewalls of the second vertical support plate 2112 and the third vertical support plate 2113. A pad 2124 is provided on the upper part of the second horizontal support plate 2122. The pad has holes corresponding to those on the second horizontal support plate 2122, and the number and position of the holes correspond to each other.
[0040] Figure 9 As shown, the brushed tooth 221 has a disc-shaped protrusion 2211 in the middle, and an elastic element is provided on the disc-shaped protrusion. In this embodiment, the elastic element is a spring 2212. The disc-shaped protrusion of the brushed tooth is located above the hole of the first horizontal support plate, and the spring is located between the first horizontal protrusion 2211 and the second horizontal support plate 2122. The upper end of the brushed tooth is provided with a thread 2213, and the upper part extends out of the upper surface of the second horizontal support plate. The brushed tooth is fixed to the second horizontal support plate by a nut. The lower end of the brushed tooth is pointed. In this embodiment, the brushed tooth assembly consists of 8 brushed teeth.
[0041] Figure 8 As shown, a hanging ring 21241 with a circular hole in the middle is provided in the middle part of the second horizontal support plate 2122. A transmission mechanism is connected to the hanging ring 21241. In this embodiment, the transmission mechanism is a pull wire 1122, which can be made of metal pull wire or other durable wire. The other end of the metal pull wire is fixedly connected to the middle connecting part 11211 of the pull rod 1121.
[0042] A pulley assembly 21231 is provided in the middle of the third horizontal support plate 2123. The pulley assembly 21231 includes two support plates. The pulley is installed between the two support plates through a rotating shaft. The pull wire 1122 passes through the pulley assembly and connects to the hanging ring 21231 on the second horizontal support plate after changing the direction of power.
[0043] Figure 10 As shown, a vertical roller assembly 240 is provided at each of the two ends (121, 122) of the first support. Since the two roller mechanisms differ only in direction, this embodiment will only describe one of them in detail. The roller mechanism 240 includes a vertical frame portion 241 and a vertical roller assembly 243 that is horizontally mounted on the support end 121 via a rotating shaft 242. When the brushing tool encounters an obstacle during its movement, this roller mechanism can help the brushing tool pass through the obstacle more smoothly.
[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0045] The above embodiments are preferred embodiments of the present utility model. The present utility model is not limited to the above embodiments. For those skilled in the art, any obvious modifications made without departing from the technical principles of the present utility model shall fall within the concept and protection scope of the appended claims of the present utility model.
Claims
1. A double-layer wall roughening tool, characterized in that... include: A frame and a brushing assembly, the frame including a gripping part and a first support part, the brushing assembly including a second support part and a brushing tooth assembly located on the second support part, the lower part of the second support part including a rolling wheel assembly that rolls in a horizontal plane, and the upper part of the second support part including a rolling wheel assembly that rolls in a vertical plane.
2. The double-layer wall roughening tool according to claim 1, characterized in that: The gripping part includes a stretching component, which is located in the middle of the gripping part.
3. The double-layer wall roughening tool according to claim 1, characterized in that: The second support portion includes a vertical support portion and a horizontal support portion fixed on the vertical support portion.
4. The double-layer wall roughening tool according to claim 3, characterized in that: The vertical support portion includes a first vertical support plate, a second vertical support plate, a third vertical support plate, and a fourth vertical support plate; the horizontal support portion includes a first horizontal support plate, a second horizontal support plate, and a third horizontal support plate; the second vertical support plate and the third vertical support plate are fixed to the lower part of the third horizontal support plate, and the first horizontal support plate and the second horizontal support portion are fixed to the inner side of the second vertical support plate and the third vertical support plate.
5. The double-layer wall roughening tool according to claim 4, characterized in that: The first vertical support plate and the fourth vertical support plate are fixedly connected to the outer sides of the two ends of the first support portion, respectively.
6. The double-layer wall roughening tool according to claim 4, characterized in that: The two ends of the third horizontal support plate are fixedly connected to the inner side of the connecting part.
7. The double-layer wall roughening tool according to claim 1, characterized in that: The vertical rolling wheels are located at both ends of the first support and at the top of the second support.
8. The double-layer wall roughening tool according to claim 4, characterized in that: A first horizontal rolling wheel is provided between the first vertical support plate and the second vertical support plate; a second horizontal rolling wheel is provided between the third vertical support plate and the fourth vertical support plate.
9. The double-layer wall roughening tool according to claim 4, characterized in that: The upper part of the second horizontal support plate is provided with a pad.
10. The double-layer wall roughening tool according to claim 1, characterized in that: The gripping part and the bristle tooth assembly are connected by a transmission mechanism.